JD 2520 tach

[df]

I have a 2520 that on the tach the RPM needle bounces around. I don't want to repl. as it is a low hour tractor. Is there someone that repair this?

 

[2520=4010]

Metro Speedometer in missouri fixed my 4010 tach. phone # 816 478 0116

Just a thought....have you tried lubing the cable? It might be that the cable inside is binding..causing the needle to bounce.

Good Luck!

 

[df]

i will try lubing the cable. thanks

 

[Ralph Bauer]

Any recommendation on the lube itself?? I got a soso working clutch cable on my 5010, mec. says that he tried his best to loosen it up, but it will work some then stick, about 130+ for a replacement from JD!

 

[2520=4010]

Not really..... There are specific lubricants for cables. It would probably be best to call the number above and ask someone who works on tachs for a living. He would likely know of a good solution for a clutch cable too.

Is the clutch cable built so that you can pull the inner cable out and clean it? Maybe use a carb cleaner to clean it???

 

[Bob Bancroft]

Time, and gravity. I'll explain. After spending big $$$ for the 3 point cable for my early 4020, I decided to do something different. Next cable challenge I had I went to the work to remove it( have to if you're going to change it anyhow). I clamp one end of the outer part in a vise, vertically. Then slide(and clamp if necessary) a piece of whatever fuel hose fits, down over it. Then stick a little funnel in the hose. Then fill the funnel with Marvel Mystery Oil(my faith in it has been restored- see recent discussions in tool talk) Then leave it. Over days I would refill the funnel, and work the cable as much as possible from the lower end. Eventually the oil would work down through, with a lot of gunk, cleaning and lubricating the cable. I have compared the results with a new cable, and the cleaned one worked easier. The next concern was "will it attract dirt and become worse than ever"? It's been a few years and it's still good. I took the old set up cable from the 4020 and gave it the same treatment. It's on the shelf, better than ever!

 

[tim s]

I have a couple of "frozen" cables soaking in a bucket of kerosine right know, some will loosen up some won't,it helps to bend them back and forth some to help loosen them, If I can save one now and then it's worth the trouble. To help ovoid them from sticking spray some penetrating oil on the from time to time, I thing it soaks in a bit to help keep them free.

 

[Ralph Bauer]

Thanks to all for the input! will try all your suggestions as needed. Ralph.